Our native common yew (Taxus baccata) has the ability to live the longest of all the UK's native tree species. It's a familiar site in churchyards and may thrive for thousands of years. They become ancient from around 900 years onwards.
Throughout the UK, including upland and cliff sites.
Churchyards, designed landscapes and gardens. Occasionally woodlands, hedgerows and limestone cliffs.
Yew may be able to live for 3,000 years although 1,500 may be more frequent. All yew will be ancient from 900 years onward (early and pre Norman), although many will have ancient characteristics from around 500 years. Ageing of yew trees is very difficult.
Typically a veteran yew will be 400-900 years of age and a notable Yew may be 200-450 years old.
Yew can grow up to 10m plus in girth.
Record all Yew more than 4m.
Consider recording all Yew with any ancient characteristics more than 3m.
It’s important to rely on characteristics rather than size, which is an unreliable indication of age. Most ancient yew are greater than 6m in girth if they grow in woodland, or if historically managed as a pollard, may be no more than 4.5 m in girth.
- Girth is large
- Major trunk cavities or progressive hollowing
- Decay holes
- Physical damage to trunk
- Bark loss
- Large quantities of dead wood in the canopy
- Crevices in the bark, under branches or on the root plate, sheltered from direct rainfall
- Fungal fruiting bodies (from heart rotting species)
- A high number of interdependent wildlife species
- Epiphytic plants
In addition the tree may have:
- Cultural or historic value
- A prominent position in the landscape
- A marker or boundary tree, such as on an ancient drovers route.
- May be associated with a Saxon church or ancient archaeological site